Footwear tread design



FIG. 1 is a bottom plan view of a footwear tread showing my new design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a right perspective view thereof;

FIG. 4 is a left perspective view thereof; and,

FIG. 5 is a rear perspective view thereof.

The broken lines throughout the views illustrate the environment in which the design resides, and form no part of the claim. 

An ornamental design for a footwear tread, as shown and described. 